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tel:2173529330mailto:[email protected]://artisantg.comhttps://www.artisantg.com/PLC/98453-1/GE-Bently-Nevada-12237-01-7000-Series-Proximitorhttps://www.artisantg.com/PLC/98453-1/GE-Bently-Nevada-12237-01-7000-Series-Proximitor

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3000 and 7000 Series Proximity Transducer Systems Technical/Ordering Information

Radial vibration and thrust position measurements on machines requiring a small linear measuring range

The 3000 and 7000 Series Proximity Transducer Systems are idea l for mea-suring radial v ibration and thrust posi-tion movements on machines that require only 40 to 50 mils linear range.

Operating on the same principle as Bently Nevada 7 200 Series proximity probes, the 3000 Series Proxim ity Probes have no moving parts. They are not subject to mechanical wear that occurs on other types of t ransducers, such as shaft riders, Linear Variable Differential Transformers (LVDT). and potentiometers.

The 3000 and 7000 Series Proximity Transducers are not designed for used in API 670 type installations.

The 3000 and 7000 Series Proximity Transducer Systems provide v ibration and position information for diagnostics as well as monitoring . You receive mea-surements of v ibration amplitude, fre-quency, phase angle, and other rptor characteristics for determining specif ic machine malfunctions. The typical re-sponse of 0 Hz to 10 kHz enables you to measure static shaft posit ion as well as dynamic motion.

The 3000 Series transducer systems utilize the 190 or 300 probes. The 7000 Series transducer systems use the 300 probe.

Each t ransducer system consists of a proximity probe, extension cable, and Proximitor.® All 3000 and 7000 Series transducer systems can be used in con-junction w ith the 7200 Series and 9000 Series Monitoring Systems.

Types of measurements obtained with a 3000 and 7000 Series Proximity Transducer System

Whether used in static, low rpm, or rapidly-changing conditions, the 7000 Series Proximity Transducer Systems provide accurate linear, gap-to-voltage measurements. They can be used on virtually all types of rotating machines, including turbines, compressors, genera-tors, pumps, and centrifuges, to make the following types of measurements:

D Radial vibration for indicating bear-ing condition, rotor unbalance, and misalignment.

D Thrust or axial posit ion for deter-mining bearing wear and potential bear-ing failure. (3000 Series probes only.)

3000 and 7000 Series Proximity Transducer System

D Shaft attitude angle or axial posi-tion, an indicator of rotor stability.

0 V ibration amplitude and phase ang le for plotting diagnostic information in polar and Bode formats.

0 Eccentricity to measure the amount of rotor bow and the steady-state posi-tion of the rotor in the journal bearing .

D Peak-to-peak eccentricity to indi-cate bearing wear, heavy preloads caused by misalignment, lube oil break-down, and electrostatic discharge.

190 and 300 Proximity Probes The 190 and 300 Proximity Probes

are offered in 12 configurations. You have a choice of fiberglass or Tonox® constmction. Tonox versions are de-signed for use in high pH environments, but are not recommended for use in pressurized ammonia.

The 300 Proximity Probe is available in two linear measuring ranges: 50 mils with a scale factor of 200 mV/mil using a 3000 Proximitor and 60 mils w ith a scale factor of 100 mV mil using a 7000 Proximitor.

The 190 Proximity Probe has a linear measuring range of 40 mils with a scale factor of 200 mV/mil when used w ith a 3000 Proximitor. It is the smallest standard probe that Bently Nevada offers.

TRANSDUCERS

3000 and 7000 Proximitors A three-conductor, shielded cable

provides the signal output and power source input interface between the Proximitor and a Bently Nevada monitor. The 3000 and 7000 Proximitors can be placed up to 1,000 feet from standard Bently Nevada monitors without degra-dation of performance.

The 3000 Proximitor is available in four configurations. The 7000 Prox-imitor is offered in two configurations.

The 3000 and 7000 Proximitors can be used w ith the 300 Proximity Probes. The 190 Proximity Probe is used with the 3000 Proximitor.

Extension Cables The combination of a probe lead and

extension cable is designed to achieve a system length of either 15 or 20 feet. The extension cable is ordered in six-inch increments. It is available w ith or without protective armor. Tonox® is a registered trademark of Uniroyal Corporation .

Specifications

OUTPUTS

Calibrated Range:

With 3000 Proximitor: 50 mils for 300 probe; 40 mils for 190 probe. Range begins at approximately 20 mils from target surface.

With 7000 Proximitor: 60 mils, for 300 probes only. Range begins at approxi-mately 30 mils from t arget sur face.

Scale Factor:

With 3000 Proximitors: 200 mV/mil (8 V/ mm).

With 7000 Proximitors: 100 mV/mil (3.94 V/mm).

Frequency Response: 0 to 600,000 cpm ± 1%

Power Requirements:

With 3000 Proximitors: -18 Vdc at 8.0 rnA nominal.

With 7000 Proximitors: -24 Vdc at 8.0 rnA nominal.

BENTLY NEVADA

P.O. BOX 157 • MINDEN. NEVADA USA 89423 • (7021 782-3611

TELEX: 7400983 • FAX: (702) 782-9253

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

ENVIRONMENTAL

Operetlng Temperature Range:

3000 Proxlmltor: -29 °C to + 66 °C 1·20 °F to + 150°Fl.

7000 Proximhor: -51 °C to + 100°C 1·60 °F to + 212°Fl.

Probe end extension cable: -56 °C to + 177 °C (-50 °F to + 350 °FI.

Tonox version probe specifications available upon request.

DIMENSIONS

Height:

3000 Proxlmltor: 1.60 inches 140.6 mm).

7000 Proximltor: 2.00 inches 150.8 mm).

Width:

3000 Proxlmitor: 2.14 inches 154.4 mm).

7000 Proximltor: 2.38 inches (60.4 mm).

Length:

3000 end 7000 Proxlmitor: 3.14 inches (79.8 mm).

Weight:

3000 Proxlmltor: 7.2 ounces 1204 grams).

7000 Proxlmltor: 6 .4 ounces 1181 grams).

Ordering Information

Standard Mount Probe

A B C 0 E CIIDJ - CD - CD -CD-OJ

Option Description A Probe Catalog Number Option B Unthreeded Length Option C Case length Option 0 Cable length Option E Connector Option

A 0::0:0 Probe Catalog Number Option Select from Table 1.

B CD Unthreeded Length Option Order in increments of 0 .1 inches Ui]for English thread, 10 mm ffiiil for metric threads.

Engbh thread configwetlont:

Maximum unthreaded length: 9.0 inches [][Q)

Minimum unthreaded length: 0 .0 inches~

Metric tlwud configuration:

Maximum unthreaded length: 900mm~

Minimum unthreaded length: 0 .0 mmra:QI

3000 and 7000 Series Proximity Transducer Systems

3000 and 7000 Series Probe Configurations

Reverse Mount !tO oM\ CMM

~===] I t 9 D::::!IJ[[[JI 3 ~ I oa ~~ C1.1U -+ 11) lor ttOPtobe ...,.,. • ._.\.Ang11'1 -·· C.Ul..,... ---1 c.-._ . 10 . ,,..

Standard Mount

_1_:1 ~~= ·-- ~~ M---.-D II ::~:~ c:oDJ=!= ..~ b --.j l "' 14.931 Cou l4"91" .. ...,,., 11·. 1 I c .. w ~tilt -.. UfttNtfOM l""Gtrl 4fM .. I

C CO Case length Option Order in increments of 0 .1 inches !:a] for English thread, 10 mm ffiii] for metric thread.

English thread configurations:

Maximum case length: 9.8 inches 001 Minimum case length: 1.0 inches IJlQI Metric thread conflguretlont:

Maximum length: 250 mm(]l]l

Minimum length: 20 mm[jfi)

0 OJ Cable length Option Order in increments of 6.0 Inches 1]1])(152 mml. Total length must exceed case length by a minimum of 4. 75 inches 1120.6 mml.

Maximum cable length: 36.0 inchesW1914 mml.

Minimum cable length: 6.0 inches 1]1])(152 mm).

E CD Connector Option 00 Without connector.

02 With miniature male coaxial connector.

~"- ·'O ·t"'

Reverse Mount Probe

A B C Fibergleu -O'l.J - 04- 02- 12-CD - CD

A B C Tonox - 0::0:0 - 02- 12- aJ -CD

Option Description A Probe Cet86og Number Option B Cable length Option C Connector Option

Note: The unthreaded length and case length are supplied in standard. pre-set lengths.

A Probe C1talog Number Option ail Fiberglass or O:O:OTonox Select from Table 1.

B CD Cable Length Option • Order In increments of 6.0 inches 1]1]) (152 mm). Total length must exceed case length by a minimum of 4. 75 inches ( 120.6 mm).

Maximum cable length: 36.0 inchesW 1914 mml.

Minimum cable length: 6.0 inches 1]1])(152.40 mml.

• To obtain the electrical length, multiply the cable length by 2.

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3000 and 7000 Series Proximity Transducer Systems

C CD Connector Option 00 Without connector.

02 With miniature male coaxial connector.

Proxlmitors

20929 - o:J 3000 Series Proxlmltor I D 01 For combined system electrical

length of 15 feet. w ith 300 tip transducer.

02 For combined system electrical length of 15 feet, w ith 190 t ip transducer.

03 For combined system electrical length of 20 feet, w ith 300 tip transducer.

04 For combined system electrical length of 20 feet, w ith 190 tip transducer.

12237 - o:J 7000 Series Proximitor OJ 01 For combined system electrical

length of 15 feet , with 300 probe t ip.

02 For combined system electrical length of 20 feet, w ith 300 probe tip.

Extension Cable

4454 - CIIJ Extension cable with armor 2789 - OJ'J Extension cable without armor

CIIJ Cable length Option Order in increments of 12 inches (Q[ill](304.8 mm).

Maximum cable length: 468 inches ~111.89 meters).

Minimum cable length: 12 inches IIDUJI305 mm).

TABLE 1

TIP

CATALOG NUMBER CASE LEAD

FIBERGLASS TON OX TYPE CONFIGURATION THREADS ARMOR

300-00 28407 300 Standard 3/8-24 No

300·01 28408 300 Standard 3/8-24 Yes

300-04-02-12 . 28411 300 Reverse 3/8-24 No

300-06 28413 300 Pressure 3/8-24 No

300-11 28416 300 Standard M10X1 No

300-12 28417 300 Standard M10X1 Yes

190·00 28400 190 Standard 1/4-28 No

190·01 28401 190 Standard 1/4-28 Yes

190·04-02-12 . 28402 190 Reverse 3/8-24 No

190-06 28404 190 Pressure 1/4·28 No

190·07 28405 190 Standard M8X1 No

190-08 28406 190 Standard M8X1 Yes

• The unthreaded length and case length are set on the reverse mount probe.

TABLE 2 Required Ell tension Cable Lengths for Proximitor

PROBE LEAD lENGTHS

CATALOG NUMBERS 61nches 121nches 181nches 24 1nchea 30 Inches 381nches

20929-01, 20929-02. 168 156 144 132 120 108 and 12237-01 Inches Inches Inches Inches Inches Inches

20929-03. 20929-04, 228 216 204 192 180 168 and 12237-01 Inches Inches Inches Inches Inches Inches

Note: Otl'ler cable lengtl'ls- up to 25 feet - not listed in Table 2 may be ordered, but are not recommended .

Lengt l'ls ere crit ical to obtain tl'le correct system performance.


I Acceleration Transducer System

I Technical/Ordering Informat ion

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High frequency measurements for determining overall machine condition

The Acceleration Transducer System is most suited for measuring high fre-quency vibration on the machine case or bearing housing. Under certain condi-t ions, it also is useful for evaluating t he overall mechanical condition of some machines.

The Acceleration Transducer System is easy to install. The transducer is mounted on the machine case, or when feasible, the bearing housing.

The Acceleration Transducer System consists of an accelerometer, intercon-nect cable, and interface module. It can be used in conjunction w ith the 7200 Series and 9000 Series Monitoring Systems.

Applications recommended for acceleration measurements

The Acceleration Transducer System normally should not be used in place of direct shaft vibration measurement, except in specific applications, such as:

0 When a supplementary casing measurement may provide pertinent information about the mechanical condi-t ion of rotat ing machinery. Supplemen-tal casing measurements are typically required for measuring gear mesh fre-quencies and turbine blade passage frequenc ies.

D When the machine housing, piping, or foundation are suspected of being t he source of significant v ibration.

How an acceleration t ransducer system works

Acceleration is the measurement of the t ime rate of change of velocity. To make this measurement, the accelerom-eter uses a piezoelectric crystal situated between the accelerometer base and an inert ial reference mass.

When compression or a tension forc·e excites the crystal , the crystal acts as a precision spring to oppose the compres-sion or tension force. It generates a displaced electric charge. An integral amplifier converts the charge to a volt-age, which is transmitted via the inter-connect cable to the interface module.

The interface module supplies a con-stant current to the accelerometer. It also amplifies the signal from the accelerometer.

The interface module has an output sensitivity of 100 mV/g.

Acceleration Transducer System

Accelerometer Two versions of the accelerometer are

offered: a standard version for measur-ing vibration frequencies up to 20 kHz and a high frequency version for mea-suring vibration frequencies up to 30 kHz.

Interface Module The standard accelerometer uses a

23733-03 interface module. The high frequency version ut il izes a 24145-02 interface module.

Interconnect Cable The interconnect cable is offered w ith

or without armor. It is ordered in one-foot increments.

The standard accelerometer utilizes a 18622 interconnect cable. A radiation-resistant option is available for the 18622 interconnect cable for use in radiation environments.

The high frequency accelerometer uses a 21165 interconnect cable. Both t he 21165 and 18622 interconnect cables are available wit h a stainless steel protective armor.

NOTE: If casing acceleration measurements are being made for the overall protec tion of a machine, thought should be given to the usefulness of the measurement for each application. Most common machine malfunct ions, such as unbalance, misalign-ment. etc ., occur on the rotor and originate as an increase (or at least a change) in rotor v ibration.

'

TRANSDUCERS

For any casing measurement alone to be effective for overall machine protection, a signi ficant amount of rotor vibration must be faithfully t ransmitted to the machine casing or mounting location of the transduc.er. In addit ion, care should be exercised in the physical installation of the acceleration transducer on the bearing housing or machine casing. Improper instal-lation may result in a decrease of the t ransducer amplitude and frequency response and/or the generation of false signals that do not represent actual vibration . For more information, please refer to the appropriate Instruction Manuals and Applica· t ion Notes.

Specifications

Accelerometer

OUTPUT SENSITIVITY

Standard: 25 mV/g ± 5% 12. 55 mV/m/sec.').

High Frequency: 10 mV/g + 10% (1.02 mV/ m/sec. ').

Acceleration Range: 50 g's peak 1490 me-tres/sec.').

Frequency Response:

Standard: 2 Hz to 20kHz ± 3 dB, 5 Hz to 10kHz ± 5% .

High Frequency : 2 Hz to 30 kHz ± 3 dB, 7 Hz to 14kHz ± 5% .

Mounted Resonant Frequency:

Standard: 30kHz minimum.

High Frequency: 55 kHz m inimum.

Amplitude Linearity: ± 1% to 50g's (490 metre/sec.').

ELECTRICAL ISOLATION

Case is internally connected to system com-mon. Isolation from machine case is provided by a built -in isolator.

Interface Module

OUTPUT SENSITIVITY

Standard: 100 mV/g (10.2 mV/metre/sec.').

High Frequency: 100 mV/g (10 .2 mV/metre/ sec.').

POWER REQUIREMENTS

Standard: - 18 to - 24 Vdc at 15 mA maxi-mum; 10 mA typical.

High Frequency: -22 to -26 Vdc at 30 mA maximum; 2 1 mA typical.

BENTLY(\ P.O. BOX157 • MINDEN. NEVADAUSA89423 • (7021782-3811

I NE\1~[)~ ~--------~o~R~IG~tNmA~t~PHA~G~E~-------------~-L~--: -3s_4_4-37 __ • __ F_AX_:_I7_o_2_17-&~2--9-25_3_ SLACK AND WHITE PHOTOGRAPU


ENVIRONMENTAL

Accelerometer Operating Temperature Range : - 20 ° Fto + 250 ° F (- 29 ° C to + 121 ° C).

Accelerometer Shock Survivability :

Standard : ± 5000g 's ( ± 49 .0 50 m/sec . ' l peak.

High Frequency : ± 10 .000g's ( + 98 .100 m/sec.'l peak .

Interface Module Operating Temperature Range: - 40 ° F to + 212 ° F ( - 40 ° C to

100 ° C).

Interface Module Storage Temperature Range: - 60 °Fto + 302 °F( - 51 ° C to + 150 ° C).


Accelerometer

23732-0 1 Standard Acce lerometer

24147-0 1 High Frequency Acce lerometer

Interface Module

23733-03 Standard Interface Module

24145 -02 High Frequency Interface M odule

Extension Cable

A B 18622 - ITJ - 0:::: Standard Extension

Cable

21165 - - 0:::: High Frequency Extension Cable

Option Description A Cable Length Option B Armor Option

A :::IJ Cable Length Option

B [C

00

01

0 2

03

Order in increments of 1 foot .

Minimum : 1 footUill

Maximum: 30 feet [][QJ

Armor Option

For 18622 and 2116 5 cables. w ith-out armor.

For 18622 and 2 1165 cables. w ith armor.

For 18622 cable used in radiation environments, w ithout armor.

For 18 62 2 cable used in rad iation environments, w it h armor.

L5008-00 (3 /86)

I Acceleration Transducer System

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Technical/Ordering Information

Reduces data reduction time for machinery behavior analysis

Bently Nevada's ADRE system (Auto -mated Diagnostics for Rotating Equip-ment) significantly reduces the time required to analyze and diagnose ma-chinery behavior. A computer-based data acquisition and reduction system, ADRE eliminates the time-consuming task of hand logging and reducing steady-state and transient dynamic vibration data .

Automated reduction of dynamic vibration data, including startup and shutdown information, enables you to analyze and document the mechanical condition of rotating machinery and troubleshoot machine malfunctions. The information received from the ADRE also can be used to balance machines, deter-mine mechanical impedances and multi-ple resonances, and assist with stability studies.

Transient dynamic vibration data col -lected during startup and shutdown is presented in Bode, polar, and cascade plots. These plots provide insight into the rotating system's margin of stability and reveal synchronous, sub-, and super-synchronous vibration components.

Steady-state dynamic vibration data is presented in orbit , time base, and com-parative spectrum plots. This informa-tion can be used to examine magnitude, frequency, phase angle, and the shape or path of dynamic motion as well as to track change in spectral content over a period of time.

ADRE is available in a variety of hard-ware and software options to meet your machinery information needs and budget requirements. The hardware consists of a choice of two Hewlett-Packard (HP) computers, a Bently Nevada Digital Vector Filter (DVF 2), and a spectrum analyzer. Recommended additional hardware includes a multi-channel FM tape recorder and a Re-corder Amplifier System .

Software packages for machine analysis

The heart of the ADRE system is soft-ware. Developed by Bently Nevada's engineering staff from years of field experience, the software is tai lored for efficient behavior analysis and diagnosis.

Five software packages are available. Transient, Steady-State, Shaft Center-line, and Hardware Diagnostics soft-

DIAGNOSTICS AND TEST KITS

(,

Hewlett-Packard computer with Bently Nevada software

Digital Vector Filter 2 (top)

Spectrum Analyzer !bottom)

ware packages are supplied as standard components of the ADRE system . An additional package - Snapshot Predic-tive Maintenance - is availab le as an option and requires additional memory and hardware.

Designed for personnel with minimal computer training , the ADRE software packages are easy to use. Operator input prompts written in simple English make program execution quick and easy.

Transient package The Transient package enables you to

acquire data for identifying rotor and structural resonances and their amplifi-cation factors, instabilities, misalign -ment, rubs, and other malfunctions. Data is plotted in polar, Bode, or cascade formats or in tabular listings.

Steady-State package The Steady-State package gives you

information on the on -line condition of your machinery at operating speed . Data can be plotted in orbit , time base, or comparative spectrum formats.

Shaft Centerline package The Shaft Centerline package pro-

vides information that can be used to determine the margin of stability on rotating machinery and the position of the shaft within its bearing . It also can be used to identify thin-film oil thick -ness, bearing wear, and the presence of

shaft preloads. Data can be plotted as a function of machine speed or elapsed time.

Hardware Diagnostics package The Hardware Diagnosti cs package

makes it possible to diagnose potential ADRE hardware failures . A series of diagnostic programs allows you to t est and verify the correct operation of the instruments and peripheral devices in theADRE system . The program ensures that all hardware is connected and oper-ating properly.

Snapshot Predictive Maintenance (PM) package

The optional Snapshot PM package, used in conjunction with Bently Nevada's Snapshot,® redu ces, stores, and plots data for a large number of machine points. This capability enab les you to increase the number of machines in your vibration monitoring or predictive maintenance program. Information is presented in trend, spectrum, and time base plots.

The software package requires addi -tional memory. The Snapshot system, when used with the ADRE computer, does not require a DVF 2 or spectrum analyzer for data collection and reduction.

For more details on the Snapshot PM package and the Snapshot system see data sheets L0546 and L0559 .

E3~~1rl_~ ~--~~----~~~,..~~P-. O~· ~BrOX __ 1_57 ___ • __ M_IN_D_E_N_,N_E_V_A_D_A_u_s_A_B_9_42_3 __ • ___ 17_0_2_l7_B_2_-3_6_1_1 __ __ ~~VADA v . ORIGINAl PAGE • FAX: 1702) 782-9253

BLACK AND WHITE PHOTOGRAPK


Software packages operate on the specified computers when they are accompanied by specific hardware and a specific operating system. No claims to software compatibility are expressed or implied for any other computer, hard-ware, or operating system revision. Call your Bently Nevada representat ive for details of computer requirements.

Hardware Two hardware system models, using

the HP Series 200 computer, are available.

The Model 10 system uses the HP Series 200 Model 16S computer.

The Model 10 system consists of: • Hewlett-Packard Series 200 Model

16S computer with a nine-inch CRT, HP-IB and RS-232 interfaces, RAM BASIC w ith extensions, and 512 Kbytes of RAM.

• Dual 3 112-inch microfloppy d isk drive.

• Thermal graphics line printer. • Bently Nevada DVF 2 with carrying

case. • Spectrum analyzer with carrying

case. • Bently Nevada Transient, Steady-

State, Shaft Centerline. and Hard-ware Diagnostics software packages.

The Model 30 system uses an HP Series 200 Model 36CS computer.

The Model 30 system consists of: • HP Series 200 Model 36CS w ith a

12-inch color CRT; an HP-IB inter-face; built-in , dual 5 1/4-inch mi-crofloppy disk drives; RAM BASIC with extensions and RAM Pascal language systems and 540 Kbytes of RAM .

• Thermal graphics line printer. • Bently Nevada DVF 2 with carrying

case. • Spectrum analyzer with carrying

case. • Bently Nevada Transient, Steady-

State, Shaft Centerline, and Hard-ware Diagnostics software packages.

ADRE~

Specifications

INPUTS

Power: 90·125 Vac or 180· 250 Vac. 48 66 Hz.

Consumption:

Model 10: 80 Watts.

Model 30: 300 Watts.

OUTPUTS

Display:

M odel10: 9 ·inch diagonal !229 mm).

Model 30: 12 .2·mch diagonal (309 mm).

STORAGE

Capacity (Mass Storage!: 540 Kbytes.

Data Sheet Number: L0453.

The heart of the ADRE is software. Developed by Bently Nevada's engineering staff from years of field experience, the software is tailored for efficient behavior analysis and diagnosis.

BLACK ORIGINAL PAGE'

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ADRt


Model10

A B C D 44163 -rl - iJ - 0 - ffi

Option Description A Computer Option B P.ripherel Device Option C Instrumentation Option D Software Option

A

B

c

"1 Computer Option 10 Standard offerong 11

12

13

' 0 1

2

3

0

1

2

3

.I

Wtth ROM BASIC

With HP 9836 Keyboard

Wtth ROM BASIC and HP 9836 Keyboard

P.rlpherel Device Option Standard offering

W1thout standard punter

W1thout standard d1sk drove

W1thout standard punter and standard dtsk drove

Instrumentation Option Standard offettng

Wtthout standard OVF 2

W1thout standard spectrum analyzer

Without OVF 2 and spectrum analyzer

L-1 I

lode'

D m Software Option Ordering ADRE software requires assistance from your Bently Nevada sales representative. The following software peckages ere available:

• Steady·State Package

• Shaft Centerhne Peck.ege

• Transient Package

• Snepshot Predictrve Matntenence IPMI Package

• Hardware D11gnosucs Peckage

Modtl30

A B C D 44166 -CD- 0 - 0 - ll l

Option Description A Computer Option

B P.ripherel Device Option

C lnttrumentetlon Option

D Software Option

A lC Computer Option 10 Standard offerong

1 1 With ROM BASIC

1 2 Without color CRT

1 3 W ith ROM BASIC end w1thout color CRT

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Aft, l .. ltll • f 2~ .. l!..h fiY " 0ttr.I IO• t ((W

-.. - ._ _ . .. -- _ .. -- ... -·-·· ...... -... .... - ·-·-

Dynem1c Trend

B 0 P.ripheral Device Option 0 Standard offering

1 Without standard printer

C 0 lnatrumentetlon Option• 0 Standard offering

Without standard OVF 2

2 Without standard spectrum analyzer

3 Wtthout OVF 2 and spectrum analyzer

D m Softwlfe Option Ordering AORE software requtres essiatance from your Bently Nevada sales representative. The following software packages are available:

• Steady·State Package

• Shaft Centerline Package

• Transient Package

• Snapshot Predictive M11ntenance IPMI Package

• Hardware Diagnostics Package

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Time .... $pectNm

The hea" of the ADRE it software. Developed by Bently Naveda'• engln"ring steff from years of~ e•perience. the aoftwere it tailored

for efficient behevior -ty~a end dlagnoals. The aoftw•e padcagea require minimal computer tr•ining to operate end •• •aay to ute.

ORIGINAL PAGE IS OF POOR QUALITY


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24000 Digital Vector Filter 2 DIAGNOSTICS AND TEST KITS Technical/Ordering Information

In-place diagnostic and balancing data for rotating machinery

The Digital Vector Filter 2 (DVF 2) gives you amplitude, phase, and speed data for diagnosing, balancing, and detecting shaft cracks on all types of rotating machinery.

Two versions of the DVF 2 are availa-ble. One version processes 1/2X, 1 X, and 2X rotative speed signals.

The second version processes 1 X, 2X, 3X, and 4X rotative speed data. The ability to analyze 1 X, 2X, 3X, and 4X rotative speed data is vital for de-tecting and diagnosing shaft cracks on turbine generators and other rotating machinery.

The DVF 2 can be interfaced with a computer, such as Bently Nevada's ADRE® (Automated Diagnostics for Rotating Equipment) system, via its IEEE 488 computer interface. When used with the ADRE, data can be presented in Bode, polar, cascade, orbit, time base, and comparative spectrum plots.

Applications for the DVF 2 The ability to accurately measure

amplitude, phase, and speed data helps answer the questions: What is happen-ing on the machine, when, where, and how? This information can be used on steam, gas, or hydroelectric turbines; electric motors; centrifugal, reciprocat-ing, or screw compressors; generators; pumps; and fans for some of the follow-ing applications:

• Detecting and diagnosing shaft cracks, using data on the 1 X, 2X, 3X, and 4X rotative speed behavior of turbine generators and other rotating machinery.

• Determining the balance condition of a machine and locating the resid-ual unbalances on a rotor.

t Determining the rpm location of the natural rotor balance resonances, or "criticals," on a machine.

• Establishing the machine response for documenting acceptance tests and for evaluating and diagnosing current and future machine behavior.

The DVF 2 provides two continuous channels of amplitude and phase data, which is filtered at running speed, and one channel of speed data.

Triggering signals from a Keyphasor® and signals from proximity, velocity, or acceleration transducers are converted by the digital circuitry in the DVF 2 to display rotor rpm, vibration amplitude, and phase angle.

Digital Vector Filter 2

Specifications INPUT

Power: 95-125 Vac or 190-250 Vac, rear panel switch selectable. 50-60 Hz 1 phase.

Nominal power consumption: 100 watts.

VIBRATION INPUT

Scale Factors:

Displacement: 200 or 100 mV/mil (8 or 4 V/mm) fixed. 100 to 1,000 mV/mil (4 to 40 mV/mml variable.

Velocity: 100 to 1.000 mV/inch/second (4 to 40 mV/mm/second) variable.

Acceleration: 100 to 1,000 mV/G ( 10 to 100 mV/M/second') variable.

Input Impedance: 1.1 M ohms m inimum at AC signal frequencies; 2.4 M ohms at DC signal frequencies.

I

DIMENSIONS

Bench Mounted Rack Mounted !Includes handle)

Height 8 inches 8 inches (203 mm) (203 mm)

Width 18 inches 19 inches (457 mml (483 mm)

Depth 18 7/8 inches 18 7/8 inches (479 mm) (479 mm)

Weight:

DVF: 33 pounds ( 15 kg) nominal.

Case: 28.5 pounds (12 .9 kg) nominal.

I

24000 Digital Vector Filter 2

Ordering Information Digital Vector Filter 2 112X, 1 X, and 2X Version

24ooo - rn ITJ Mounting Option 01 Bench Mount (includes case) . 02 19-inch EIA Rack Mount.

Digital Vector Filter 2 1 X, 2X, 3X, and 4X Version

24ooo - rn ITJ Mounting Option 03 Bench Mount (includes case) . 04 19-inch EIA Rack Mount .

The DVF 2 enables you to accurately measure amplitude, phase, and locating the residual unbalances on a rotor, and diagnosing shaft cracks speed for determining the balance condition of rotating machinery, and other machine malfunctions.

L6004 (8/861 Data Subject to Change ORIGINAL PAGE' BLACK AND WHI TE PHOTOGRAPf.f



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Digital Vector Filter 3 Technical/Ordering Information

The solution for balancing and diagnosing rotating machinery problems at a competitive price

The Digital Vector Filter 3 (DVF 3) provides amplitude, phase, and shaft rotative speed data for detailed vibration analysis including balancing, rotor response evaluation and shaft crack detection on all types of rotating ma-chinery. The instrument's primary appli -cation is for documentation of vibration data during machine transient (runup and coastdown) and steady-state (constant speed) conditions.

The DVF 3 accommodates two signal inputs for vibration transducers and a third for a Keyphasor® transducer. Vibra-tion inputs can be from either displace-ment (proximity) , velocity, or acceleration transducers. The Keyphasor input represents a once-per-revolution pulse from either a proximity probe, an optical pickup, or a strobe light. This provides the measurement of shaft rotative speed, and the reference point for measuring phase lag angle. It also provides a trigger signal to tune the tracking filter in each vibration channel to shaft rotative speed.

The instrument provides excellent reliability and outstanding performance in a rugged, lightweight package. Its alphanumeric display and menu-driven setup make the instrument easy to operate. It provides the information accuracy required to make sound deci-sions regarding machine condition. The DVF 3 can be ordered in several pack-ages, which enables you to select the components best suited for your spe-cific applications without the expendi-ture for unnecessary functions.

Easy-to-use functional features The DVF 3 's streamlined design incor-

porates the features our customers have found most useful from years of experience and adds new features which assist in solving today's machin-ery problems.

Two channels are simultaneously displayed on the large, highly visible readout, showing vibration amplitude, phase angle, and shaft rotative speed. The display also shows status of instru-ment setup parameters, such as filter mode and hold .

Bode/Polar Plots A GP-IB interface is provided for

connection to a computer or directly to one or up to two digital plotters depend-ing on the type of DVF 3 . The DVF 3 is

BENTLY NEVADA

DIAGNOSTIC AND PORTABLE INSTRUMENTS

ORIGINAL PAGE BLACK AND WHITE PHOTOGRAPH


programmed to produce high quality Bode and polar plots on-site with the accessory digital plotter(s) . These plots can be generated "real-time", on full size blank paper (8 1/2 x 11 in . or A4l with full annotation .

Alternatively, the accessory DVF 3 software package may be used to pro-duce these plots on an IBM AT or com-patible computer. See DVF 3 Storage and Plotting Application Software prod-uct data sheet L6030.

Bode and polar plots are useful for evaluating vibration response during machine transient conditions. These plots reveal balance resonances (critical speeds), synchronous amplification factors, and other characteristics for evaluating machine condition .

Sweep Frequency Plots

For machinery operation under steady-state conditions the DVF 3 will produce sweep frequency spectrum plots. Frequency analysis provides useful additional information for com-plete evaluation of machinery vibration characteristics.

Automatic signal sweep allows:

• Frequency spectrum plotting within user-defined start and end frequen-cies.

• Frequency component search ; instrument pauses at components above a user-defined amplitude threshold .

• Manual (coarse/fine) tuning to pinpoint frequencies of interest .

Other Features

Keyphasor error indication appears when :

• Shaft rotative speed is outside the operating range (50 to 100,000 rpm)

• Consecutive Keyphasor pulses (shaft rotative speed measure-ments) vary more than 12 .5%

• Trigger threshold is set too low or high.

Peak Hold stores the maximum vector (for both channels) since the last time the memory was reset; a useful feature for identification of peak amplitudes from transient data .

Variable Transducer Input scale fac -tors (0 .1 to 9999 .9 millivolts per engi-neering unit) allow connection of virtually all available proximity, velocity and acceleration transducers. Scale factors between input and output are equal , providing convenient interface with other diagnostic instruments.

Hold function freezes the display for easy reading and interpretation of the values; useful for identifying 1 X vectors at a particular balancing speed .

Multiple Full Scale Ranges enhance the accuracy of measured variables and make the instrument extremely useful for a variety of applications.

P.O. BOX 157 • MINDEN, NEVADA USA 89423 • (7021 782-3611

TELEX: 7400983 BNC UC • FAX: (702) 782-9253


Signallntegr11tion from acceleration to velocity or from velocity to displacement is available independently on each channel.

Metric or English Units can be used for d1splay of measured variables. Displace· ment values are shown In pk·pk units; velocity and acceleration units can be O·pk or RMS.

DC G11p Voltage measurements are available for both channels. The high resolution of this data allows the deter· m1nation of shah average radial position relative to the bearing clearance.

Triggttring in Two Modes is possible. In the AUTOMATIC mode, the threshold level is determined by the DVF 3; ideal for triggering on a noise-free Keyphasor pulse. In the MANUAL mode. the thresh· old level is selected by the user. which allows tnggering on a poor quality Keyphasor pulse. In odd1tion, the manual mode allows Keyphasor rndexing. The index function identif ies the location of tho Koyphasor roloronce mark when visual observation Is impossible. Index· ing, indicated by an asterisk on the dis· play, is performed on the negative slope of the Keyphasor pulse. which lor a notch, relates to the le&d1ng edge. and for a projection or opucal p1ckup, the trailing edge.

Amp6tudtJ Over/Underrllnge conditions are indicated on the display to ensure data integrity.

Tr11cking Filter &ndwidth is selectable between t2 and 120 cpm to provide accurate measurements for low and high speed applica tions.

Filtered 1/2X, 1 X end 2X signal outputs ara available. These dynamic s1gnals may be used for display on an oscilloscope (e.g. lor filtered orbits) or connected to other diagnostic Instruments.

Slow Rolf Compensation is provided in order to eliminate the effects of shah runout. The runoot vectors may be stored automatically w1th the rotor at slow roll speed. or the previously docu· mented vectors can be entered manually.

Coexist Connectors on the front and rear panel inputs and outputs provide a reliable interface for transducers and other instruments.

Useful for a Wide Variety of Applications

The extended operating range of the DVF 3 (50 to 100,000 rpm) allows it to be used on virtually al l types of rotating machinery.

• Steam, gas. and hydroelectric turbines

• Electric motors and generators


COMPANYr ---------------------PLANTa----------------------MACH INE TRAJNr XDCR IOr ---------------DATEr STATEr START-UP lX Ftltor od C~p SLOii ROLLa 1. 42 111 i I pp I 349 dog Co 11 octad at 369 rp,.

~r---------------------------------------------,

• • 10 .-uo t...,..) ~~~X5X \) OVF 3

Bode Plot

• Centrifugal . reciprocating, and screw compressors

• VertiCal and horizontal pumps • Gearboxes • Fans and blowers • Centrifuges • Paper machine rollers • Propulsion systems

Using the DVF 3 for balancing

The DVF 3 is ideal for balancing rotat· ing machinery due to It's ability to track tho 1 X vibration response of the ma· chine. The 1 X vector on each channel can be slow roll compensated lor shalt runout effects to display the true t X dynamic motron. The slow roll com pen· satlon vectors can be automatically

sampled or manually entered by the user. The HOLD function enables the user to freeze the displayed data for easy interpretation at the balancing speed.

The Field Balancing Package option provides a programmable handheld HP 41 CV calculator and Bently Nevada software lor multiplane balancing solu· t1ons, up to lour planes.

Using t he DVF 3 for REAL TIME Bode and Polar Plotting.

The DVF 3 and tho accessory digital plotter(sl can produce Bode or polar plots in "real time"; a useful feature for the engineer faced with deciding whether a machine start-up should con· tinue or not.

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COMPANY•----------------------PLANTa ______________________ _

MACHINE TRAINa XOCR IQ, ---------------DATEa STATEa START-UP IX Fi l t ar ad Comp SLOW ROLLa 1. 42 mil pp I 348 dag Coll act ad ot 35g r pm

0

l BO

10.0 mil pp FULL SCALE CCW ROTATION BENTLY f"\ OVF 3 N EVA D A V

Polar Plot

The polar plots are automatically annotated with rpm tic marks at rotative speed increments. This plot is extremely useful for structural resonance and mode shape identif ication, particularly on balancing exercises where modal considera tion is required.

The Bode plot scaling is user-select· able in terms of amplitude, rpm and phase lag angle. This plot allows the exact frequency of resonances to be accurately determined. The damping characteristics of a system resonance can be evaluated by calculating synchro· nous amplification factors from the presented data.

Both the Bode and polar plots can be made using the 1 X or 2X vectors. The 2X plot is very useful in the detection of shaft cracks w here lateral stiffness asym· metry due to a crack is to be evaluated.

Using the DVF 3 with a tape recorder.

Multi -channel tape recording of a startup or shutdown can be easily reduced in the field into report-quality Bode and polar plots for each channel. The DVF 3 and i ts accessory plotter(s) can produce these quality plots from blank (B' /2 x 11 inch or A4) paper or previously prepared graph paper. The DVF 3 firmware is programmed to fu lly label these plots. Plot correlation is possible by replaying data from other transducers or channels and plotting on the same sheet . The multi-pen, multi -color plotter(s) facilitates this feature.

Using the DVF 3 for Pre- and Post-Maintenance checks.

When a long running machine is being

shutdown for planned maintenance, the DVF 3, digital plotter(sl and a tape recorder can be used to provide quick documentation of the t ransient charac· teristics during shutdown. This data can be used either as a baseline transient response curve or compared with the last response curve plotted fo r that machine. Indications of changes in balance condition, system dynamic stiffness and damping effects can be quickly pinpointed using such methods.

Plots generated from shutdown data can be compared to those made during startup in order to evaluate the effects of any maintenance performed on the machine during shutdown. In addit ion, the post-maintenance transient re-sponse can be used as a reference for the next scheduled maintenance.

Using the DVF 3 for Acceptance Testing .

A typical acceptance test may include the documentation of measured balance resonances, calculation of synchronous amplification factors (01, shaft mode shapes and frequency spectra. It may also call for casing measurements which are specified in either 0-to-peak or RMS units. The DVF 3 and its accessories can document and display all of this information, making it an ideal test stand instrument .

Using the DVF 3 with low Speed Machinery.

The tracking f il ters on the DVF 3 can operate down to 50 rpm, making the instrument useful for low speed applica-t ions. Hydroturbines and cooling tower fans can be balanced accurately using 1 X vector information. The 12 cpm bandwidth selection is useful for low speed applications.

The low speed DVF 3 response is also useful for measuring shaft runout at slow roll speeds for eliminating runout effects from subsequent vibration data and detection of shaft cracks.

Using the DVF 3 with the ADRE II System.

The DVF 3 can be used in place of the DVF 2 with the ADRE II system. When DVF 3 is used with the ADRE II system, one additional useful feature is the ability to manually enter slow roll com-pensation vectors at the instrument' s front panel. This eliminates having to sample real slow roll data from tape recordings before compensation can be performed on any plot.


Specifications The following specifications are

intended to provide basic information only.

Speci fications provided are at 73 ° F (23 ° CI w ith a sine wave input , at input scale factor greater than 3 mvtmil and w ith a full scale setting of 10 m ils. Where required. input signal level is the full scale selection. Specifications given are for a shaft rotative speed of 3600 rpm and with the tracking f ilter set for 12 cpm bandwidth.

INPUTS

Power: 90-132 Vac or 180·264 Vac, (switch selectable), 4 7 to 63Hz, 1 phase. Nominal power consumption 30 Watts.

Vibration Signals: Sensitivity: Selectable in 0 .1 mV per

engineering unit increments from 0 .1 to 9 ,999.9 mVIuntt.

Range: From one to six full scale ranges are available depending on sensitivity and units selected. For example 2 . 5, 10. 20 and 50 mil ranges are available with an input sensit ivity of 200 mVI mil.

Probe Gap Voltage: ± 25 Vdc. Impedance: 1 MO.

Keyphasor Signal: Input impedance: 100 kO. Transducer: 7200. 7000 or 3000

series transducer system, optical pickup, or stroboscope; one event per shaft revolution.

Threshold range: ± 18 Vdc. Hysteresis: Factory set at 0 .5 volts.

Internally adjustable for 0 .2 , 0.5 and 1.5 volts.

OUTPUTS

Display Accuracy: Input to front panel display

Ampitude (non-integrating):

Direct Mode: pk-pk and 0-pk; wrthin + 2 .9%. - 3 .2% (maximum).

RMS Mode: Wrthin + 2 .8%, - 3 .1% (maximum).

Filtered Mode: W1th1n + 2 .0 %, - 2.4% (maximum).

Phase: Filtered Mode: Within + 0 .6%,

- 2 .1% (maximum).


COMP•r.-v:-P!..AHT:-I'J CH!HE TRA I~ -OATE: _

• XllCR IO:. STATE: Sl

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ENVIRONMENTAL LIMITS

Temperature Range: Operating: + 32 °F to + 122 ° F

(0 °C to +50 °C). Storage: - 40 ° F to + 185 ° F

I 40 ° C to + 85 °Cl. Relative Humidity: Up to 90%, noncon·

densing.

HAZARDOUS AREA APPROVALS

CSA: Certified safe for general purpose use in laboratory environments.

PHYSICAL

Width: 17.40 in. (440 mm). Depth: 17.25 in. (430 mm). Height: 5.18 in. (130 mm). Weight: 22 lbs. (10 kg). Rack mountable (19 inches - 482 .6

mm) with optional EIA rack-mount kit

Ordering Information The DVF 3 and commonly-used

accessories comprise the DVF 3 Field Packages. You can design your package by using the accessories list for maximum flexibility.

BASIC FIELD PACKAGES

81496-0 1 Includes: 1 DVF 3 Type 77581 -01 1 DVF 3 soft carrying case 1 Digital plotter 1 Set of interconnect cables

81496-02 Includes: 1 OVF 3 Type 77581-02 £ 1 OVF 3 soft carrying case 2 Digital planers 1 Set of interconnect cables

BALANCING PACKAGE

8224 6-01 Includes: 1 HP-41 CV calcula tor with card

reader and printer 1 HP Infrared printer with inter face

module 1 Bently Nevada Multiplane Balancing

software package (4-plane maximum)

ENGINEERING UNITS

User Selection: Abbreviation: mils peak-to-peak ................. ..... . •.. . .............. (mil ppJ micrometres peak-to-peak . .............. . .. .. ............... (~m ppl inches per second peak .... .. ............. .... .............. (in/s pkl inches per second rms . .... . ......... . .. . ...........•...... (in/ s rmsJ millimetres per second peak ............... .. . .. . .. ......... (mm/s pkl millimetres per second rms ... ..... ........................ (mm/s rmsl velocity integrated to displacement in mils peak-to-peak .. . .. ..... ... lint mil ppJ velocity integrated to displacement in micrometres peak-to-peak . .. . ... (in t ~m pp) g's peak ................... . ..... ... . .......... ....... . . (g pkl g's rms ....................... • ...•.. . . ................ (g rms) metres per second per second peak ............... ......... .... (m/ss pkl metres per second per second rms ............. ... ...... ...... (m/ss rmsl acceleration integrated to velocity in inches per second peak .......... lint in/s pk) acceleration integrated to velocity in inches per second rms .......... (int in/s rmsl acceleration integrated to velocity in millimetres per second peak ..... (int mm/s pkl acceleration integrated to velocity in millimetres per second rms ..... lint mm/s rms)

TRANSDUCER FIELD PACKAGE I

82705-01 Includes: 1 Proximito~ panel. 4 Proximity probes and cables. 2 Velocity transducers and mounting

accessories. Optical Keyphasor® and mounting accessories. Co-axial t o Banana adapters. Co-axial cables Banana cables TK 15 Keyphasor Conditioner/Power Supply.

2 Manuals 1 Hard carrying case.

ACCESSORIES

77581-01 DVF 3 77581-02 DVF3 lfi 79981 -01 OVF 3 test cable kit & 76285-01 DVF 3 hard transit case 78858-01 DVF 3 soft carrying case 75237-01 DVF 3 rack-mount kit

82292-01 OVF 3 Users Guide & 02198937 OVF 3 power cord & 83194-01 DVF 3 Storage and Ploning

Application Software& 02290871 Tektronix HC100 digital

plotter& 04160166 HC100 Hard carry case 02290003 HP-18 Computer Interface

card 02260372 HP-IB Cable 02290381 HP 7440A digital planer 9200-09-01-01 Velocity transducer & 80705-02 Velocity interconnect cable,

6ft (2 ml 16707-01 Adapter (3 to 2 wire) & 46000-0 1 Super Mag 100 magnetic

base 7989-01 Extension rod, for use with

9200 velocity transducer 10798-03 Optical pickup 20545-25 Optical pickup cable (25ft) 202 11-05 Optical pickup mounting

package (Includes: locking pliers. magnetic base. gooseneck transducer holder)

81769-01 Reflective tape roll 02 29094 7 HP 41 CV programmable

calculator


43980-01 Bently Nevada multiplane balancing software (HP 41CVor CX)

02290948 HP card reader 02290951 HP infrared printer 02290949 Printer interface module 76131 -01 Stroboscope kit w ith

12 Vdc battery pack and 240 Vac, 50160 Hz charger

76131-02 Stroboscope kit with 12 Vdc battery pack and 120 Vac, 50160 Hz charger

76131-04 Stroboscope kit with 120 Vac, 50160 Hz power supply

76131-03 Stroboscope kit with 240 Vac. 50/60 Hz power supply

73783-0 1 Keyphasor Multiplier/ Divider 81663-01 Keyphasor Conditioner{

Power Supply


& Supplied with DVF 3 and all packages & Other velocity transducers are available. & For use with Bently Nevada 16699 3-wire velocity transducers. & Test cable kit consists of a set of short coaxial cables with BNC connectors for use with the DVF 3 self test function. .& DVF 3 type 77581-02 has additional features; - 18, - 24 Vdc power supply to drive Proximitors and the ability to drive two digital plotters simultaneously. £See product data sheet L6030 for details on DVF 3 software for IBM AT and compatible computers. fn US style plug, 110 V ac. Other power and mains plug configurations available for UK, European, Swiss, Australian and North American users.

BENTLY(\ NEVADA\)

WORLDWIDE SALES AND SERVICE United States of America: Phoenix, Arizona I I Los Angeles. California I I San Diego. California 1-1 San Francisco, California

St. Petersburg, Florida U Charlotte, North Carolina ( I Atlanta. Georgia 0 Chicago, Il linois n Kansas City, Kansas Baton Rouge. louisiana ll Boston, Massachusetts I I Chester, New Jersey n Buffalo, New York l I Cincinnati, Ohio U Tulsa. Oklahoma

Port land. Oregon [J Philadelphia, Pennsylvania U Pittsburgh, Pennsylvania ( I Dallas. Texas n Houston, Texas International: Argentina U Australia ( I Brazil U Brit ish Columbia l I Canada I I Chile I I Columbia U Egypt 0 France

Germany U Greece n India 0 Indonesia 0 Italy rJ Japan U Korea U Kuwait lJ Malaysia ~ J Mexico U The Netherlands U New Zealand Nigeria 0 Norway ll Pakistan rJ People's Republic of China 0 Qatar 0 Quebec U Saudi Arabia rJ Singapore 0 South Africa [) Sweden

Taiwan 0 Turkey rJ United Arab Emirates [1 United Kingdom [I USSR 0 Venezuela Corporate Office: P.O. Box 157 • Minden, Nevada. U.S.A. • Telephone: 702 782-3611 • Telex: 740098 3 BNC UC • Fax: 702-782-9253

@ 1989 Bently Nevada Corporation

L6021 101189) Data Subject to Change



I I I I I I I I I I I I I I I I I

ADRE® 3 Technical/Ordering Information

Fast acquisition and reduction of dynamic vibration data for rotating machinery behavior analysis

The ADRE® 3 system (Automated Diagnostics for Rotating Equipment) provides affordable, fast and simple acquisition and reduction of vibration data for diagnostics on rotating machinery.

The system's ability to simultaneously capture eight channels of dynamic vibration data during machine transient conditions (startup or shutdown), or while the machine is operating at a constant speed, makes ADRE 3 essen-tial for rotating equipment specialists.

An ADRE 3 data acquisition and reduction system consists of:

• One (or up to ten) Bently Nevada 108 Data Acquisition lnstrument(s)

• Bently Nevada ADRE 3 application software

• Computer system

With ADRE 3 's application software, dynamic waveform records and static data records (vector and scalar values) are retrieved from the 108 Data Acquisi-tion Instrument ( 108 DAI) or floppy disk, and reduced in a variety of plotting formats suitable for diagnosis of rotat-ing machinery malfunctions.

Ease of use and low cost make it economical to utilize ADRE 3 as part of a (predictive) vibration analysis pro-gram. Its ease of operation enables acquisition and reduction of vibration data for analysis with minimal training.

Low weight and compact size make the ADRE 3 system (with "portable" computer) the ideal setup for "in the field" work, on acceptance test and balancing stands, control rooms and laboratories.

ADRE 3 is specifically designed to analyze rotating machinery; in particu-lar, steam and gas turbines, electric motors, centrifugal and screw compres-sors, vertical and horizontal pumps, turbogenerator sets, hydroturbine-generator sets, turbo expanders, ship propulsion systems, aircraft engines, fans, blowers, reciprocating engines and compressors.

108 Data Aquisition Instrument

The 108 DAI is a highly versatile instrument with many features aimed at application flexibility and easy user interface.

BENTLY NEVADA

DIAGNOSTIC AND PORTABLE INSTRUMENTS

The ADRE 3 system consists of one (or up to 10) 108 DAI Data lnstrument(s) (left) and computer system with ADRE 3 software lrightl .

• Vibration input signals can be from acceleration, velocity and displace-ment transducers.

• Scale factors are user selectable (default values or manual entry).

• Single integration may be per-formed on each of the eight channels.

• English and metric engineering units can be displayed in pk-pk values for displacement and 0 -pk or RMS for velocity and acceleration.

• Independent channel overload and Keyphasor"' error LEDs ensure that the user is alerted of irregularities during data collection.

Setup keys on the 108 DAI make it simple to configure the instrument to acquire data . Selections which can be made using the clearly labeled keys include the transducer units, scale factor, full scale range, trigger mode, filter mode ( 1 X or 2X) and bandwidth. The user selects whether data will be acquired based on elapsed time (6 TIME), change in shaft rotative speed (6RPM), or both .

For ease of use and efficiency, the 108 DAI enables the user to configure and store (in non-volatile EEPROM) up to seven instrument setup configura-tions. Eight setup configurations can be recalled . The eighth is a factory pro-grammed setup.

For complete system integrity, the user can initiate nine different self tests simply by pressing two dedicated keys simultaneously. The 108 DAI display indicates completion and results of a performed self test. Individual channels can be tested, using the test signal at the rear panel.

Automatic data collection can be pre-programmed, based on elapsed time (f. TIME). changes in machine speed (~RPM), or both . Data also can be acquired manually, by pressing the MANUAL SAMPLE key on the 108 DAI front panel, or by a (remote) contact closure.

Each channel on the 108 DAI can store up to 32 dynamic waveform records and 320 static data records. Under t. TIME or f. RPM control, a wave-form record is sampled concurrently with each tenth static data record.

When using MANUAL SAMPLE, both a waveform record and a static data record are sampled and stored.

A dynamic waveform record consists of 512 data samples and represents the "real time" vibration waveform from the measured points. The first 2 56 samples are used for orbit and time base wave-form reconstruction and presentation. Antialiasing filters are not used when these samples are taken because such filters introduce phase errors in the data.

P.O. BOX 157 • MINDEN. NEVADA USA 89423 • (702) 782-3611

TELEX: 7400983 BNC UC FAX: (702) 782-9253


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